A novel method for tosyloxylation of anilides using phenyliodine bistrifluoroacetate (PIFA)
摘要:
The direct tosyloxylation of anilides was described in this Letter. In the presence of phenyliodine bis(trifluoroacetate) (PIFA) and BF3 center dot Et2O, the reaction of anilides with TsOH provided para-tosyloxylated products with high regioselectivity under mild conditions. (C) 2011 Elsevier Ltd. All rights reserved.
Reaction of N-acetyl- and N-[1-(arylsulfonylimino)ethyl]-1,4-benzoquinone imines with sodium arenesulfinates
作者:S. A. Konovalova、A. P. Avdeenko、V. V. Pirozhenko、O. P. Ledeneva、A. A. Santalova
DOI:10.1134/s1070428014090097
日期:2014.9
N-Acetyl- and N-[1-(arylsulfonylimino)ethyl]-1,4-benzoquinone imines having no substituent in the 2- and/or 6-position of the quinoid ring react with sodium arenesulfinates preferentially according to the 1,4-addition pattern. The presence of an ArSO2N group favors radical ion reaction with formation of 1,6-addition products.